Springtime in New York: Is anything better? We show you how to spend an entire day in the garden — without ever leaving Manhattan.

9 A.M. — Breakfast: Gramercy Terrace

9 A.M. — Breakfast: Gramercy Terrace

Sit down to some granola and Illy coffee at the Gramercy Park Hotel's Gramercy Terrace,a greenhouse café enveloped in pergolas and vines on the hotel's 16th floor. Staying downstairs? Lucky you: You'll also be able to while away some hours in members-only Gramercy Park across the road.

11 A.M. — Explore: High Line

11 A.M. — Explore: High Line

The two-year-old High Line — the elevated park that runs through the Meatpacking neighborhood on Manhattan's West Side — has just doubled in size. Section 2, new this spring, stretches from 20th St. to 30th St. and includes a 5,000-square-foot lawn, new seating steps, a "Chelsea Thicket" dense with holly trees, and a viewing spur overlooking 26th St. that's framed by sumac and sassafras leaves.

From Gansevoort St. to 30th St., between 10th and 11th Aves.; 212-206-9922